Glossary term
What is Effect?
In Apex Flow Academy, "Effect" means: Code that runs after the screen is drawn, to keep React in step with something outside it, such as browser storage. It is taught in React and Next.js: Build Modern Web Apps. Related terms include Context, localStorage, Reducer and Hydration. Every Apex Flow Academy course lists the official sources it checked.
- 1 course teaches it
- plain-word definition
The facts
What is Effect?
Code that runs after the screen is drawn, to keep React in step with something outside it, such as browser storage.
Where is Effect taught?
Effect is defined in React and Next.js: Build Modern Web Apps.
Which lessons cover Effect?
These lessons name it in their title or objectives:
- React and Next.js: Build Modern Web Apps, lesson 3.4: Effects: keep the list after a reload
Which terms are related to Effect?
Next to Effect in the course glossaries: Context, localStorage, Reducer, Hydration, Mutate, Route, Derived value and Layout.
ContextlocalStorageReducerHydrationMutateRouteDerived valueLayout
The hard questions, answered straight
Bold questions people really ask. Each answer comes from the course data or a settled Academy fact.
Do I need experience before I learn Effect?
It depends on the course. Each course that teaches it lists its own prerequisites, and all are listed at intermediate level:
- React and Next.js: Build Modern Web Apps: Basic JavaScript: you can write a function, use variables with const and let, work with arrays and objects, and have seen map and filter. Modules 1 and 2 explain destructuring and spread the first time they appear.